I backed up the Z-wave network, saved a backup, then did a factory-reset-and-upgrade which worked. However, uploading the backup even after checking "Restore Z-Wave network" left me with only one Z-wave device (and it's a battery device whose battery is low or possibly dead - so I'm not even sure it will come back).

I would really, really not like to have to redo my whole z-wave setup. I have several backups - any chance I can recover this?